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The NFS service is on sgh28h13 originally. sgh28h13 has one interface net0 in public network for this service. So I use "ifconfig unplumb net0" to shutdown net0 so the NFS service could failover to the other node. But the service is still online on sgh28h13 after I shutdown the net0 and sc_ipmp0. I don't know why the NFS service didn't failover. Could somebody help?